Separation techniques RGSHW - Phoenix Hoyle | Library

5

Match the labels

Other Answer Choices:

Beaker

Samples

solvent

line in pencil

Chromatography paper

2

The bottom of paper must be ___________________
The pencil line must be ______________________
   

Other Answer Choices:

above the solvent

in the solvent

6

1

4

Select the correct option.
Note - the more soluble a dye is the further the dot will move.
Note - the more soluble the dye the larger the Rf value will be.
Note -  the Rf value can not be more than 1.

Other Answer Choices:

False

True

1

Rf = _______ / _______ 
Rf = _______ 

1

Note - the _________  soluble a dye is the further the dot will move.
Note - the more soluble the dye the ___________  the Rf value will be.
Note -  the Rf value can not be more than ______ .

Other Answer Choices:

1

smaller

more

less

0.5

larger

1

Other Answer Choices:

A

3

4

C

2

1

B

1

Start line not drawn in ______________________ so line will _____________ 
Samples are in the ____________ so the samples will _____________ in the water instead of moving up the __________ .

Other Answer Choices:

solvent

dissolve

paper

pencil

4

Sample B did not move as sample is ___________soluble in the solvent used.
To fix this we would use a  ______________solvent, for example ____________  alcohol or propanol in which sample B _______  soluble

Other Answer Choices:

different

ethanol

is

is not